Tag Archives: gear

China Professional 9V Small Vacuum Gear Diaphragm Pump with Intake and Exhaust Ports Mini Air Pump a/c vacuum pump

Product Description

High-Performance China Micro Vacuum Pump
Micro Air Pump/Brush DC Diaphragm Pressure Vacuum Pump/Mini Compressor Air Pump
Manufacturing  Factory


Product Description

To get more Technical data, Please Send a message!




Miniature pump/Air pump/Vacuum pump/Water Pump/Atomization Pump/Foam pump/Nasal aspirator pump/Check valve Pump/Piston pump/Gear pump/Water Vapor pump/purpose air pump/Extraction pump/Dual pump/Vacuum air pump/Peristaltic pump/Miniature air pump



Air Valve/Normal shutdown/Solenoid valve/Normal shutdown/Two-way valve/Water valve/Three-way valve



Speed ratio DC brushless planetary motor/DC brushless motor of vacuum cleaner/DC brushless motor/Brushless DC motor for UAV

Feel free to send us your parameter and we will quote you for free!

We give you professional product solutions based on the product information you provide, including customization.

No big quantity is needed for your order. Small orders are welcomed.

We can also add your logo or design to your product with a laser marking machine.

Customized series

Tell us the product you want, we will provide you with professional customization of the product.

Support oem/odm, support proofing, support packaging, support voltage, support size, support design, etc.

Product Usage

Pump: electronic sphygmomanometer, household appliances, Sprayers, coffee machines, soap dispensers, beauty and medical products, Floor Scrubbers, nebulizer, Breast pump, oral irrigator, massage, eye massage apparatus, vacuum fresh container, electric aircraft cup, DC oxygen pump, Airwave physiotherapy machine, aroma diffuser, Beer brewing machine, Scrapping instrument, nasal aspirator, Intelligent wall breaker, drinking fountain, Car massage seat, Foot Massager and DC atomizing pump ect.

Solenoid valve: Smart fresh Fruit cup, Red wine preservation device, electronic sphygmomanometer, massage, household appliances, Sprayers, coffee machines, soap dispensers beauty and medical products etc.

DC brushless motor: massage, household massage gun, household appliances, electrical tools, water pump etc.

Company Profile



HangZhou CHINAMFG Motor Co., Ltd., founded in 2pcs, number of employees 600+, we have patent certificates for various products in addition to CE certificates, we provide product parameter customization
Our main products include micro air pumps, water pumps, air valves, electromagnets, micro DC motors, and other micro motors.
Our products are widely applied in medical devices, electronic sphygmomanometers, massage armchairs, smart instruments, automation devices, coffee machines, smart cleaners, breast pumps, and blood monitors. etc
We have a group of highly experienced engineers who specialized in the development of micro air pumps, micro air valves, and micro motors for over 21 years.



1. What can you buy from us?
Air Pump / Solenoid Pump / Water Pump, Solenoid Valve / Water Valve, Valves, Micro DC Motors / other micromotors


2. What can we do for you?
We can develop new products for you or modify parameters such as flow, current, and pressure on existing products. We can OEM, and ODM.

Batch orders will be shipped in 30 working daysSample order will be shipped within 3 working days.

3.How long is the deliver[Producing] and shipping ?

Always a pre-production sample before mass production;Always final Inspection before shipment.

4. How can we guarantee quality?

The warranty is 3 year. We deliver new and faultless products. Also, we are responsible for repairing and replacing the defective ones in the warranty period meanwhile we provide life-long free technical support and maintenance.

5.What’s your warranty ?

One-stop service: one-stop service from production to shipment. Quality: A professional engineering team strictly controls product quality. Productivity: Fully automatic equipment can firmly support your bulk orders. Build your ideas: Any custom designs you have are welcome.

6.What services can we provide?

HangZhou CHINAMFG Motor Co., Ltd. is a professional Micro Pumps and solenoid valves manufacturer. Passed ISO 9001, (EU)2015/863, EC1907/2006 quality system. With a talented design team releasing original designs.

7. Why should you buy from us not from other suppliers? HangZhou CHINAMFG Motor Co., Ltd. is a professional Micro Pumps and solenoid valves manufacturer. Passed ISO 9001, (EU)2015/863, EC1907/2006 quality system. With a talented design team releasing original designs.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Timely
Warranty: 1 Year
Certification: RoHS, Reach; ISO9001:2015
US$ 4/Piece
1 Piece(Min.Order)


Order Sample



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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

vacuum pump

What Is the Vacuum Level and How Is It Measured in Vacuum Pumps?

The vacuum level refers to the degree of pressure below atmospheric pressure in a vacuum system. It indicates the level of “emptiness” or the absence of gas molecules in the system. Here’s a detailed explanation of vacuum level measurement in vacuum pumps:

Vacuum level is typically measured using pressure units that represent the difference between the pressure in the vacuum system and atmospheric pressure. The most common unit of measurement for vacuum level is the Pascal (Pa), which is the SI unit. Other commonly used units include Torr, millibar (mbar), and inches of mercury (inHg).

Vacuum pumps are equipped with pressure sensors or gauges that measure the pressure within the vacuum system. These gauges are specifically designed to measure the low pressures encountered in vacuum applications. There are several types of pressure gauges used for measuring vacuum levels:

1. Pirani Gauge: Pirani gauges operate based on the thermal conductivity of gases. They consist of a heated element exposed to the vacuum environment. As gas molecules collide with the heated element, they transfer heat away, causing a change in temperature. By measuring the change in temperature, the pressure can be inferred, allowing the determination of the vacuum level.

2. Thermocouple Gauge: Thermocouple gauges utilize the thermal conductivity of gases similar to Pirani gauges. They consist of two dissimilar metal wires joined together, forming a thermocouple. As gas molecules collide with the thermocouple, they cause a temperature difference between the wires, generating a voltage. The voltage is proportional to the pressure and can be calibrated to provide a reading of the vacuum level.

3. Capacitance Manometer: Capacitance manometers measure pressure by detecting the change in capacitance between two electrodes caused by the deflection of a flexible diaphragm. As the pressure in the vacuum system changes, the diaphragm moves, altering the capacitance and providing a measurement of the vacuum level.

4. Ionization Gauge: Ionization gauges operate by ionizing gas molecules in the vacuum system and measuring the resulting electrical current. The ion current is proportional to the pressure, allowing the determination of the vacuum level. There are different types of ionization gauges, such as hot cathode, cold cathode, and Bayard-Alpert gauges.

5. Baratron Gauge: Baratron gauges utilize the principle of capacitance manometry but with a different design. They consist of a pressure-sensing diaphragm separated by a small gap from a reference electrode. The pressure difference between the vacuum system and the reference electrode causes the diaphragm to deflect, changing the capacitance and providing a measurement of the vacuum level.

It’s important to note that different types of vacuum pumps may have different pressure ranges and may require specific pressure gauges suitable for their operating conditions. Additionally, vacuum pumps are often equipped with multiple gauges to provide information about the pressure at different stages of the pumping process or in different parts of the system.

In summary, vacuum level refers to the pressure below atmospheric pressure in a vacuum system. It is measured using pressure gauges specifically designed for low-pressure environments. Common types of pressure gauges used in vacuum pumps include Pirani gauges, thermocouple gauges, capacitance manometers, ionization gauges, and Baratron gauges.

\vacuum pump

Can Vacuum Pumps Be Used for Chemical Distillation?

Yes, vacuum pumps are commonly used in chemical distillation processes. Here’s a detailed explanation:

Chemical distillation is a technique used to separate or purify components of a mixture based on their different boiling points. The process involves heating the mixture to evaporate the desired component and then condensing the vapor to collect the purified substance. Vacuum pumps play a crucial role in chemical distillation by creating a reduced pressure environment, which lowers the boiling points of the components and enables distillation at lower temperatures.

Here are some key aspects of using vacuum pumps in chemical distillation:

1. Reduced Pressure: By creating a vacuum or low-pressure environment in the distillation apparatus, vacuum pumps lower the pressure inside the system. This reduction in pressure lowers the boiling points of the components, allowing distillation to occur at temperatures lower than their normal boiling points. This is particularly useful for heat-sensitive or high-boiling-point compounds that would decompose or become thermally degraded at higher temperatures.

2. Increased Boiling Point Separation: Vacuum distillation increases the separation between the boiling points of the components, making it easier to achieve a higher degree of purification. In regular atmospheric distillation, the boiling points of some components may overlap, leading to less effective separation. By operating under vacuum, the boiling points of the components are further apart, improving the selectivity and efficiency of the distillation process.

3. Energy Efficiency: Vacuum distillation can be more energy-efficient compared to distillation under atmospheric conditions. The reduced pressure lowers the required temperature for distillation, resulting in reduced energy consumption and lower operating costs. This is particularly advantageous when dealing with large-scale distillation processes or when distilling heat-sensitive compounds that require careful temperature control.

4. Types of Vacuum Pumps: Different types of vacuum pumps can be used in chemical distillation depending on the specific requirements of the process. Some commonly used vacuum pump types include:

– Rotary Vane Pumps: Rotary vane pumps are widely used in chemical distillation due to their ability to achieve moderate vacuum levels and handle various gases. They work by using rotating vanes to create chambers that expand and contract, enabling the pumping of gas or vapor.

– Diaphragm Pumps: Diaphragm pumps are suitable for smaller-scale distillation processes. They use a flexible diaphragm that moves up and down to create a vacuum and compress the gas or vapor. Diaphragm pumps are often oil-free, making them suitable for applications where avoiding oil contamination is essential.

– Liquid Ring Pumps: Liquid ring pumps can handle more demanding distillation processes and corrosive gases. They rely on a rotating liquid ring to create a seal and compress the gas or vapor. Liquid ring pumps are commonly used in chemical and petrochemical industries.

– Dry Screw Pumps: Dry screw pumps are suitable for high-vacuum distillation processes. They use intermeshing screws to compress and transport gas or vapor. Dry screw pumps are known for their high pumping speeds, low noise levels, and oil-free operation.

Overall, vacuum pumps are integral to chemical distillation processes as they create the necessary reduced pressure environment that enables distillation at lower temperatures. By using vacuum pumps, it is possible to achieve better separation, improve energy efficiency, and handle heat-sensitive compounds effectively. The choice of vacuum pump depends on factors such as the required vacuum level, the scale of the distillation process, and the nature of the compounds being distilled.

vacuum pump

Are There Different Types of Vacuum Pumps Available?

Yes, there are various types of vacuum pumps available, each designed to suit specific applications and operating principles. Here’s a detailed explanation:

Vacuum pumps are classified based on their operating principles, mechanisms, and the type of vacuum they can generate. Some common types of vacuum pumps include:

1. Rotary Vane Vacuum Pumps:

– Description: Rotary vane pumps are positive displacement pumps that use rotating vanes to create a vacuum. The vanes slide in and out of slots in the pump rotor, trapping and compressing gas to create suction and generate a vacuum.

– Applications: Rotary vane vacuum pumps are widely used in applications requiring moderate vacuum levels, such as laboratory vacuum systems, packaging, refrigeration, and air conditioning.

2. Diaphragm Vacuum Pumps:

– Description: Diaphragm pumps use a flexible diaphragm that moves up and down to create a vacuum. The diaphragm separates the vacuum chamber from the driving mechanism, preventing contamination and oil-free operation.

– Applications: Diaphragm vacuum pumps are commonly used in laboratories, medical equipment, analysis instruments, and applications where oil-free or chemical-resistant vacuum is required.

3. Scroll Vacuum Pumps:

– Description: Scroll pumps have two spiral-shaped scrolls—one fixed and one orbiting—which create a series of moving crescent-shaped gas pockets. As the scrolls move, gas is continuously trapped and compressed, resulting in a vacuum.

– Applications: Scroll vacuum pumps are suitable for applications requiring a clean and dry vacuum, such as analytical instruments, vacuum drying, and vacuum coating.

4. Piston Vacuum Pumps:

– Description: Piston pumps use reciprocating pistons to create a vacuum by compressing gas and then releasing it through valves. They can achieve high vacuum levels but may require lubrication.

– Applications: Piston vacuum pumps are used in applications requiring high vacuum levels, such as vacuum furnaces, freeze drying, and semiconductor manufacturing.

5. Turbo Molecular Vacuum Pumps:

– Description: Turbo pumps use high-speed rotating blades or impellers to create a molecular flow, continuously pumping gas molecules out of the system. They typically require a backing pump to operate.

– Applications: Turbo molecular pumps are used in high vacuum applications, such as semiconductor fabrication, research laboratories, and mass spectrometry.

6. Diffusion Vacuum Pumps:

– Description: Diffusion pumps rely on the diffusion of gas molecules and their subsequent removal by a high-speed jet of vapor. They operate at high vacuum levels and require a backing pump.

– Applications: Diffusion pumps are commonly used in applications requiring high vacuum levels, such as vacuum metallurgy, space simulation chambers, and particle accelerators.

7. Cryogenic Vacuum Pumps:

– Description: Cryogenic pumps use extremely low temperatures to condense and capture gas molecules, creating a vacuum. They rely on cryogenic fluids, such as liquid nitrogen or helium, for operation.

– Applications: Cryogenic vacuum pumps are used in ultra-high vacuum applications, such as particle physics research, material science, and fusion reactors.

These are just a few examples of the different types of vacuum pumps available. Each type has its advantages, limitations, and suitability for specific applications. The choice of vacuum pump depends on factors like required vacuum level, gas compatibility, reliability, cost, and the specific needs of the application.

China Professional 9V Small Vacuum Gear Diaphragm Pump with Intake and Exhaust Ports Mini Air Pump   a/c vacuum pump		China Professional 9V Small Vacuum Gear Diaphragm Pump with Intake and Exhaust Ports Mini Air Pump   a/c vacuum pump
editor by CX 2024-04-11

China Good quality Stainless Steel Two Stage Vacuum Pump Lobe Rotary Piston Pump Gear Rotary Oil Pump with Moving Wheel Cart a/c vacuum pump

Product Description

21 Years Of Experience. 3-7 days delivery, 3 Years Warranty , Reasonable Price And Best Service, CE Certificated Products. Advanced Technology. Please contact us for the offer.



Product Description



Rotary lobe pumps are positive-displacement type pumps that use 2 or more lobes rotating around parallel shafts in the pump’s body to move liquids. They are widely used in the hygienic processing industries, including food & beverage processing and biopharmaceutical manufacturing.


Working Principle of Rotary Lobe Pump:

The rotary lobe pumps, we also called them lobe rotor pumps. They are 1 popular transfer pump to conveying the food, beverage, pulp and paper, chemical, pharmaceutical and so on. The rotor lobe pump relies on 2 synchronously rotating rotors that generate suction (vacuum) at the inlet during the rotation. Thereby sucking in the material to be conveyed. Both rotors split the rotor chamber into different spaces. Then operate in the order of 1-2-3-4. The medium is delivered to the discharge port. In this cycle, the medium (material) is continuously transported out by the source.

Different Kind of Lobe Options for the Rotor Lobe Pump

1. Single Lobed Rotor: More suitable for conveying media which containing large granular materials. The breaking rate of large granular materials is low. But on other hand it is not popular 1 for used, Because its pulsation is large and pressure is low, also the volume is small for the space of transferred materials.

2. Two-Lobed Rotor (Butterfly Rotor) More suitable for conveying media which containing small and medium-size granular materials. The breaking rate to these materials is low and getting slightly pulsating. The volume is a little less than the three-lobed rotor for the space of transferred materials.

3. Three-Lobed Rotor It is widely used in 1 rotor. The volume is bigger than other type of rotors for the space of transferred materials. Also, each performance is higher than other rotors. Just, it has a certain rate of breakage to the particulate materials on the transport way.

4. Multi-Lobed Rotor(4-12) The volume is smaller for the space of transferred materials and breaking rate higher when the quantity of rotary vane of rotor be increased, Just the transport way more stable.


1,There Is A Certain Gap Between Rotor And Rotor, No Friction Coefficient, So Pump Have A Long Service Life Time.
2, It Is Easy To Install And Disassemble, And It Is Convenient To Maintain, clean . There Is Less Wearing Parts.
3, High Efficiency And Energy Saving, Stable Transportation, Low Failure Rate, No Leak Sealing And Low Noise.
4, The Viscosity Of The Transportable Medium Is, ≤2000000 CP, And The Pump Can Transfer Slurry Containing 70% Solids.
5, It Can Transport Gas, Liquid And CHINAMFG Three-Phase Mixture Materials.
6, With FD, The Flow Can Be Adjusted At Will, And The Pump Can Be Used As A General Metering Pump.
7, If you need, We Can Do The Pump With Heating Jacket.
8, Applicable Temperature: -50 °C, -250 °C.
9, Types Of Inlet/Outlet Connection: Flange Joint, Threaded Connection; Quick Connection.
10,Seal Type: Mechanical Seal And Packing Seal.

Lobe Pump Scope Of Application.

Dairy Products: Yogurt, Cream, Ice Cream, Cheese And Whey.
Beverages: Beer, Wort, Yeast, Soft Drinks, Fruit Concentrates, Fruit Drinks.
Food: Tomato Sauce, Vegetable Paste, Seasoning, Sweeteners, Yeast Paste, Salad, Meat Emulsion, Edible Oil.
Candy: Syrup, Cream Stuffing, Fruit Purée, Fruit Filling, Pudding, Jam, Jelly, Chocolate.
Cosmetics: Creams And Lotions, Hair Gels, Hair Dyes, Essential Oils.
Drugs: Pill, Extract, Emulsion, Paste.
Chemicals: Fats, Solvents, Resins And Polymers, dyes…



Since the pump’s lobes do not come into contact with each other, lobe pumps can move solids suspended in slurries (such as cherries or olives in food processing applications) without product damage. The gentle pump action further minimizes product degradation. Can handle larger sized particles than may be pumped with other types of positive displacement pumps. It may be easily cleaned using either clean-in-place (CIP) or steam-in-place (SIP) methods, making them ideal for hygienic processing applications. Highly efficient for pumping very viscous liquids. Offer accurate and consistent fluid output that is unaffected by changes in head pressure, assuming sufficient fluid viscosity. The fluid flow can be increased or decreased by controlling the drive speed. If wetted, rotary lobe pumps are also self-priming, and can run dry for long periods of time (assuming the pump’s seals are lubricated). Generally easy to maintain.

Product Name:

Sanitary Stainless Steel Rotor Rotary Lobe Pump 


Designed according to 3A standard, widely used for transfer viscous media in the food-processing, cosemtics and pharmaceutical


Horizontal Ace series, diffirent rotor shapes(single rotro,tri-lobe rotors and butterfly type rotors)



Seal Material:

CHINAMFG (Standard, approval)

Max. Flow:





1-1000 rmp

Rotor Type:

2-leaves, 3-leaves, butterfly, signal butterfly

Mechanical seal:


Motor power:

0.75kw, 1.1kw, 1.5kw, 2.2kw, 3kw, …22KW

Sealing option:

Sanitary single mechanical seal/Double mechanical seal with cooling system


220V, 380V(110-480v)


ABB, Siemens,Our Domestic Brand,50hz/ 60hz

Surface treatment:

Inner polished and Sandblast outside


Clamp, Thread, weld, Flange

Availably standard:




Application scope:

Dairy, food, beverage, pharmacy, cosmetic, etc

Packaging Details:

Plywood case

Delivery details:

Usually within1-7 days after receiving T/T down payment

We can customize the Lobe Pump according to customer requirements.

Technical Parameters


Capacity/Per centum rotate (L)











































































Detailed Photos


Packaging & Shipping


Other pumps





Q1. What is your terms of packing?
A: Generally, we pack our goods in plywood case or carton package for small parts.
If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?
A: T/T in advance, 30% as deposit, and finish 70% balance payment before delivery.
We’ll show you the photos of the products and packages before you pay the balance.

Q3. What is your terms of delivery?

Q4. How about your delivery time?
A: Generally, it will take 3 to 4 weeks after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order.

Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings.

Q6.Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q7: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.


/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Video Technical Support, Online Support
Warranty: 2 Years
Mesh Form: External Engaged
Tooth Flank: Stainless Steel Rotary Lobe
Tooth Curve: Stainless Steel Rotary Lobe
Power: Electric
US$ 850/Set
1 Set(Min.Order)




vacuum pump

What Is the Role of Vacuum Pumps in Semiconductor Manufacturing?

Vacuum pumps play a critical role in semiconductor manufacturing processes. Here’s a detailed explanation:

Semiconductor manufacturing involves the production of integrated circuits (ICs) and other semiconductor devices used in various electronic applications. Vacuum pumps are used extensively throughout the semiconductor manufacturing process to create and maintain the required vacuum conditions for specific manufacturing steps.

Here are some key roles of vacuum pumps in semiconductor manufacturing:

1. Deposition Processes: Vacuum pumps are used in deposition processes such as physical vapor deposition (PVD) and chemical vapor deposition (CVD). These processes involve depositing thin films of materials onto semiconductor wafers to create various layers and patterns. Vacuum pumps help create a low-pressure environment necessary for precise control of the deposition process, ensuring uniform and high-quality film formation.

2. Etching and Cleaning: Vacuum pumps are utilized in etching and cleaning processes, which involve the removal of specific layers or contaminants from semiconductor wafers. Dry etching techniques, such as plasma etching and reactive ion etching, require a vacuum environment to facilitate the ionization and removal of material. Vacuum pumps aid in creating the necessary low-pressure conditions for efficient etching and cleaning processes.

3. Ion Implantation: Ion implantation is a process used to introduce impurities into specific regions of a semiconductor wafer to modify its electrical properties. Vacuum pumps are used to evacuate the ion implantation chamber, creating the required vacuum environment for accurate and controlled ion beam acceleration and implantation.

4. Wafer Handling and Transfer: Vacuum pumps are employed in wafer handling and transfer systems. These systems utilize vacuum suction to securely hold and manipulate semiconductor wafers during various manufacturing steps, such as loading and unloading from process chambers, robotic transfer between tools, and wafer alignment.

5. Load Lock Systems: Load lock systems are used to transfer semiconductor wafers between atmospheric conditions and the vacuum environment of process chambers. Vacuum pumps are integral components of load lock systems, creating and maintaining the vacuum conditions necessary for wafer transfer while minimizing contamination risks.

6. Metrology and Inspection: Vacuum pumps are utilized in metrology and inspection tools used for characterizing semiconductor devices. These tools, such as scanning electron microscopes (SEMs) and focused ion beam (FIB) systems, often operate in a vacuum environment to enable high-resolution imaging and accurate analysis of semiconductor structures and defects.

7. Leak Detection: Vacuum pumps are employed in leak detection systems to identify and locate leaks in vacuum chambers, process lines, and other components. These systems rely on vacuum pumps to evacuate the system and then monitor for any pressure rise, indicating the presence of leaks.

8. Cleanroom Environment Control: Semiconductor manufacturing facilities maintain cleanroom environments to prevent contamination during the fabrication process. Vacuum pumps are used in the design and operation of the cleanroom ventilation and filtration systems, helping to maintain the required air cleanliness levels by removing particulates and maintaining controlled air pressure differentials.

Vacuum pumps used in semiconductor manufacturing processes are often specialized to meet the stringent requirements of the industry. They need to provide high vacuum levels, precise control, low contamination levels, and reliability for continuous operation.

Overall, vacuum pumps are indispensable in semiconductor manufacturing, enabling the creation of the necessary vacuum conditions for various processes, ensuring the production of high-quality semiconductor devices.

vacuum pump

Can Vacuum Pumps Be Used for Soil and Groundwater Remediation?

Vacuum pumps are indeed widely used for soil and groundwater remediation. Here’s a detailed explanation:

Soil and groundwater remediation refers to the process of removing contaminants from the soil and groundwater to restore environmental quality and protect human health. Vacuum pumps play a crucial role in various remediation techniques by facilitating the extraction and treatment of contaminated media. Some of the common applications of vacuum pumps in soil and groundwater remediation include:

1. Soil Vapor Extraction (SVE): Soil vapor extraction is a widely used remediation technique for volatile contaminants present in the subsurface. It involves the extraction of vapors from the soil by applying a vacuum to the subsurface through wells or trenches. Vacuum pumps create a pressure gradient that induces the movement of vapors towards the extraction points. The extracted vapors are then treated to remove or destroy the contaminants. Vacuum pumps play a vital role in SVE by maintaining the necessary negative pressure to enhance the volatilization and extraction of contaminants from the soil.

2. Dual-Phase Extraction (DPE): Dual-phase extraction is a remediation method used for the simultaneous extraction of both liquids (such as groundwater) and vapors (such as volatile organic compounds) from the subsurface. Vacuum pumps are utilized to create a vacuum in extraction wells or points, drawing out both the liquid and vapor phases. The extracted groundwater and vapors are then separated and treated accordingly. Vacuum pumps are essential in DPE systems for efficient and controlled extraction of both liquid and vapor-phase contaminants.

3. Groundwater Pumping and Treatment: Vacuum pumps are also employed in groundwater remediation through the process of pumping and treatment. They are used to extract contaminated groundwater from wells or recovery trenches. By creating a vacuum or negative pressure, vacuum pumps facilitate the flow of groundwater towards the extraction points. The extracted groundwater is then treated to remove or neutralize the contaminants before being discharged or re-injected into the ground. Vacuum pumps play a critical role in maintaining the required flow rates and hydraulic gradients for effective groundwater extraction and treatment.

4. Air Sparging: Air sparging is a remediation technique used to treat groundwater and soil contaminated with volatile organic compounds (VOCs). It involves the injection of air or oxygen into the subsurface to enhance the volatilization of contaminants. Vacuum pumps are utilized in air sparging systems to create a vacuum or negative pressure zone in wells or points surrounding the contaminated area. This induces the movement of air and oxygen through the soil, facilitating the release and volatilization of VOCs. Vacuum pumps are essential in air sparging by maintaining the necessary negative pressure gradient for effective contaminant removal.

5. Vacuum-Enhanced Recovery: Vacuum-enhanced recovery, also known as vacuum-enhanced extraction, is a remediation technique used to recover non-aqueous phase liquids (NAPLs) or dense non-aqueous phase liquids (DNAPLs) from the subsurface. Vacuum pumps are employed to create a vacuum or negative pressure gradient in recovery wells or trenches. This encourages the movement and extraction of NAPLs or DNAPLs towards the recovery points. Vacuum pumps facilitate the efficient recovery of these dense contaminants, which may not be easily recoverable using traditional pumping methods.

It’s important to note that different types of vacuum pumps, such as rotary vane pumps, liquid ring pumps, or air-cooled pumps, may be used in soil and groundwater remediation depending on the specific requirements of the remediation technique and the nature of the contaminants.

In summary, vacuum pumps play a vital role in various soil and groundwater remediation techniques, including soil vapor extraction, dual-phase extraction, groundwater pumping and treatment, air sparging, and vacuum-enhanced recovery. By creating and maintaining the necessary pressure differentials, vacuum pumps enable the efficient extraction, treatment, and removal of contaminants, contributing to the restoration of soil and groundwater quality.

vacuum pump

Can Vacuum Pumps Be Used in Laboratories?

Yes, vacuum pumps are extensively used in laboratories for a wide range of applications. Here’s a detailed explanation:

Vacuum pumps are essential tools in laboratory settings as they enable scientists and researchers to create and control vacuum or low-pressure environments. These controlled conditions are crucial for various scientific processes and experiments. Here are some key reasons why vacuum pumps are used in laboratories:

1. Evaporation and Distillation: Vacuum pumps are frequently used in laboratory evaporation and distillation processes. By creating a vacuum, they lower the boiling point of liquids, allowing for gentler and more controlled evaporation. This is particularly useful for heat-sensitive substances or when precise control over the evaporation process is required.

2. Filtration: Vacuum filtration is a common technique in laboratories for separating solids from liquids or gases. Vacuum pumps create suction, which helps draw the liquid or gas through the filter, leaving the solid particles behind. This method is widely used in processes such as sample preparation, microbiology, and analytical chemistry.

3. Freeze Drying: Vacuum pumps play a crucial role in freeze drying or lyophilization processes. Freeze drying involves removing moisture from a substance while it is in a frozen state, preserving its structure and properties. Vacuum pumps facilitate the sublimation of frozen water directly into vapor, resulting in the removal of moisture under low-pressure conditions.

4. Vacuum Ovens and Chambers: Vacuum pumps are used in conjunction with vacuum ovens and chambers to create controlled low-pressure environments for various applications. Vacuum ovens are used for drying heat-sensitive materials, removing solvents, or conducting reactions under reduced pressure. Vacuum chambers are utilized for testing components under simulated space or high-altitude conditions, degassing materials, or studying vacuum-related phenomena.

5. Analytical Instruments: Many laboratory analytical instruments rely on vacuum pumps to function properly. For example, mass spectrometers, electron microscopes, surface analysis equipment, and other analytical instruments often require vacuum conditions to maintain sample integrity and achieve accurate results.

6. Chemistry and Material Science: Vacuum pumps are employed in numerous chemical and material science experiments. They are used for degassing samples, creating controlled atmospheres, conducting reactions under reduced pressure, or studying gas-phase reactions. Vacuum pumps are also used in thin film deposition techniques like physical vapor deposition (PVD) and chemical vapor deposition (CVD).

7. Vacuum Systems for Experiments: In scientific research, vacuum systems are often designed and constructed for specific experiments or applications. These systems can include multiple vacuum pumps, valves, and chambers to create specialized vacuum environments tailored to the requirements of the experiment.

Overall, vacuum pumps are versatile tools that find extensive use in laboratories across various scientific disciplines. They enable researchers to control and manipulate vacuum or low-pressure conditions, facilitating a wide range of processes, experiments, and analyses. The choice of vacuum pump depends on factors such as required vacuum level, flow rate, chemical compatibility, and specific application needs.

China Good quality Stainless Steel Two Stage Vacuum Pump Lobe Rotary Piston Pump Gear Rotary Oil Pump with Moving Wheel Cart   a/c vacuum pump		China Good quality Stainless Steel Two Stage Vacuum Pump Lobe Rotary Piston Pump Gear Rotary Oil Pump with Moving Wheel Cart   a/c vacuum pump
editor by CX 2024-03-26

China Standard High-Pressure Vacuum Rated Glue Molasses Polymer Adhesive Hydraulic Oil Polyurethane Foam Metering Gear Pumps with Hot selling

Product Description

high-pressure vacuum rated glue molasses polymer adhesive hydraulic oil polyurethane foam metering gear pumps        

A.[Product Description]

   The design utilizes high standard external spur gears enclosed within a close tolerance housing assembly. This provides you the precise volume of fluid dispensed per shaft revolution. The housing is constructed from precision ground and lapped three-plate assembly. This assembly is aligned with dowels to allow close control of operating clearances. This construction method in combination with several proprietary internal features is what ensures precise, pulseless and reliable flow under varying process conditions. When HangZhou Instrument pumps are coupled with a pre-packaged, integrated, closed-loop speed control and a compact motor driver assembly (AC or DC), HangZhou Instrument is able to provide the most precise and flexible metering gear pump system on the market.  






Total Height Base Height Min Inlet Pressure Max Outpet Pressure Accuracy Temperature
GWMP-0.15 0.15 83 28.1 <0.2Mpa <30Mpa +/-3% 200ºC


0.3 85 30.2 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-0.6 0.6 85 32 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-1.2 1.2 90 34 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-2.4 2.4 100 42 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-3.6 3.6 105 50 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-6 6 130 41 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-9 9 135 46 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-12 12 140 51 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-15 15 145 56 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-20 20 150 64 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-30 30 165 80 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-40 40 90 215 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-50 50 97 215 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-60 60 104.5 230 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-75 75 112 230 <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-80 80 Customized Customized <0.2Mpa <30Mpa +/-3% 200ºC
GWMP-125 125 Customized


<0.2Mpa <30Mpa +/-3% 200ºC

Note:Direction of rotation: clockwise from the axis of rotation 


Model 6CC 9CC 12CC 15CC 20CC 25CC 30CC
A 130 135 140 145 150 158 165
B 41 46 51 56 64 72 80


  Min Inlet Pressure   <0.2Mpa
  Working Speed   5~200 R/min
  Medium   Fluid
  Temperature   200ºC
  Max Outlet Pressure   <30Mpa
  Flow Capacity   6-30(+/-30)CC/R
  Sealing   Combined seal


Model 0.15CC 0.3CC 0.6CC 1.2CC 2.4CC 3.2CC 3.6CC
A 83 85 85 90 100 103 105
B 28.1 30.2 32 34 42 47.6 50


  Min Inlet Pressure   <0.2Mpa
  Working Speed   5~200 R/min
  Medium   Fluid
  Temperature   200ºC
  Max Outlet Pressure   <30Mpa
  Flow Capacity   0.15-3.6(+/-3%)cc/r
  Sealing   Combined 


D.[Company Info]

  • Our Company is Top 10 Manufacture on Alibaba;
  • We have about 30 years of experience in Manufacture;
  • Our products have been exported to more 100 coutries and area;
  • ISO,SGS,CE and more ceterficates for you reference;
  • Patent technology and more than 3 years working life


Mesh Form: Internal Engaged
Tooth Flank: Skew Tooth
Tooth Curve: Involute


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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

vacuum pump

How Are Vacuum Pumps Employed in the Production of Electronic Components?

Vacuum pumps play a crucial role in the production of electronic components. Here’s a detailed explanation:

The production of electronic components often requires controlled environments with low or no atmospheric pressure. Vacuum pumps are employed in various stages of the production process to create and maintain these vacuum conditions. Here are some key ways in which vacuum pumps are used in the production of electronic components:

1. Deposition Processes: Vacuum pumps are extensively used in deposition processes, such as physical vapor deposition (PVD) and chemical vapor deposition (CVD), which are commonly employed for thin film deposition on electronic components. These processes involve the deposition of materials onto substrates in a vacuum chamber. Vacuum pumps help create and maintain the necessary vacuum conditions required for precise and controlled deposition of the thin films.

2. Etching and Cleaning: Etching and cleaning processes are essential in the fabrication of electronic components. Vacuum pumps are used to create a vacuum environment in etching and cleaning chambers, where reactive gases or plasmas are employed to remove unwanted materials or residues from the surfaces of the components. The vacuum pumps help evacuate the chamber and ensure the efficient removal of byproducts and waste gases.

3. Drying and Bake-out: Vacuum pumps are utilized in the drying and bake-out processes of electronic components. After wet processes, such as cleaning or wet etching, components need to be dried thoroughly. Vacuum pumps help create a vacuum environment that facilitates the removal of moisture or solvents from the components, ensuring their dryness before subsequent processing steps. Additionally, vacuum bake-out is employed to remove moisture or other contaminants trapped within the components’ materials or structures, enhancing their reliability and performance.

4. Encapsulation and Packaging: Vacuum pumps are involved in the encapsulation and packaging stages of electronic component production. These processes often require the use of vacuum-sealed packaging to protect the components from environmental factors such as moisture, dust, or oxidation. Vacuum pumps assist in evacuating the packaging materials, creating a vacuum-sealed environment that helps maintain the integrity and longevity of the electronic components.

5. Testing and Quality Control: Vacuum pumps are utilized in testing and quality control processes for electronic components. Some types of testing, such as hermeticity testing, require the creation of a vacuum environment for evaluating the sealing integrity of electronic packages. Vacuum pumps help evacuate the testing chambers, ensuring accurate and reliable test results.

6. Soldering and Brazing: Vacuum pumps play a role in soldering and brazing processes for joining electronic components and assemblies. Vacuum soldering is a technique used to achieve high-quality solder joints by removing air and reducing the risk of voids, flux residuals, or oxidation. Vacuum pumps assist in evacuating the soldering chambers, creating the required vacuum conditions for precise and reliable soldering or brazing.

7. Surface Treatment: Vacuum pumps are employed in surface treatment processes for electronic components. These processes include plasma cleaning, surface activation, or surface modification techniques. Vacuum pumps help create the necessary vacuum environment where plasma or reactive gases are used to treat the component surfaces, improving adhesion, promoting bonding, or altering surface properties.

It’s important to note that different types of vacuum pumps may be used in electronic component production, depending on the specific process requirements. Commonly used vacuum pump technologies include rotary vane pumps, turbo pumps, cryogenic pumps, and dry pumps.

In summary, vacuum pumps are essential in the production of electronic components, facilitating deposition processes, etching and cleaning operations, drying and bake-out stages, encapsulation and packaging, testing and quality control, soldering and brazing, as well as surface treatment. They enable the creation and maintenance of controlled vacuum environments, ensuring precise and reliable manufacturing processes for electronic components.

vacuum pump

What Is the Role of Vacuum Pumps in Pharmaceutical Manufacturing?

Vacuum pumps play a crucial role in various aspects of pharmaceutical manufacturing. Here’s a detailed explanation:

Vacuum pumps are extensively used in pharmaceutical manufacturing processes to support a range of critical operations. Some of the key roles of vacuum pumps in pharmaceutical manufacturing include:

1. Drying and Evaporation: Vacuum pumps are employed in drying and evaporation processes within the pharmaceutical industry. They facilitate the removal of moisture or solvents from pharmaceutical products or intermediates. Vacuum drying chambers or evaporators utilize vacuum pumps to create low-pressure conditions, which lower the boiling points of liquids, allowing them to evaporate at lower temperatures. By applying vacuum, moisture or solvents can be efficiently removed from substances such as active pharmaceutical ingredients (APIs), granules, powders, or coatings, ensuring the desired product quality and stability.

2. Filtration and Filtrate Recovery: Vacuum pumps are used in filtration processes for the separation of solid-liquid mixtures. Vacuum filtration systems typically employ a filter medium, such as filter paper or membranes, to retain solids while allowing the liquid portion to pass through. By applying vacuum to the filtration apparatus, the liquid is drawn through the filter medium, leaving behind the solids. Vacuum pumps facilitate efficient filtration, speeding up the process and improving product quality. Additionally, vacuum pumps can aid in filtrate recovery by collecting and transferring the filtrate for further processing or reuse.

3. Distillation and Purification: Vacuum pumps are essential in distillation and purification processes within the pharmaceutical industry. Distillation involves the separation of liquid mixtures based on their different boiling points. By creating a vacuum environment, vacuum pumps lower the boiling points of the components, allowing them to vaporize and separate more easily. This enables efficient separation and purification of pharmaceutical compounds, including the removal of impurities or the isolation of specific components. Vacuum pumps are utilized in various distillation setups, such as rotary evaporators or thin film evaporators, to achieve precise control over the distillation conditions.

4. Freeze Drying (Lyophilization): Vacuum pumps are integral to the freeze drying process, also known as lyophilization. Lyophilization is a dehydration technique that involves the removal of water or solvents from pharmaceutical products while preserving their structure and integrity. Vacuum pumps create a low-pressure environment in freeze drying chambers, allowing the frozen product to undergo sublimation. During sublimation, the frozen water or solvent directly transitions from the solid phase to the vapor phase, bypassing the liquid phase. Vacuum pumps facilitate efficient and controlled sublimation, leading to the production of stable, shelf-stable pharmaceutical products with extended shelf life.

5. Tablet and Capsule Manufacturing: Vacuum pumps are utilized in tablet and capsule manufacturing processes. They are involved in the creation of vacuum within tablet presses or capsule filling machines. By applying vacuum, the air is removed from the die cavity or capsule cavity, allowing for the precise filling of powders or granules. Vacuum pumps contribute to the production of uniform and well-formed tablets or capsules by ensuring accurate dosing and minimizing air entrapment, which can affect the final product quality.

6. Sterilization and Decontamination: Vacuum pumps are employed in sterilization and decontamination processes within the pharmaceutical industry. Autoclaves and sterilizers utilize vacuum pumps to create a vacuum environment before introducing steam or chemical sterilants. By removing air or gases from the chamber, vacuum pumps assist in achieving effective sterilization or decontamination by enhancing the penetration and distribution of sterilants. Vacuum pumps also aid in the removal of sterilants and residues after the sterilization process is complete.

It’s important to note that different types of vacuum pumps, such as rotary vane pumps, dry screw pumps, or liquid ring pumps, may be utilized in pharmaceutical manufacturing depending on the specific requirements of the process and the compatibility with pharmaceutical products.

In summary, vacuum pumps play a vital role in various stages of pharmaceutical manufacturing, including drying and evaporation, filtration and filtrate recovery, distillation and purification, freeze drying (lyophilization), tablet and capsule manufacturing, as well as sterilization and decontamination. By enabling efficient and controlled processes, vacuum pumps contribute to the production of high-quality pharmaceutical products, ensuring the desired characteristics, stability, and safety.

vacuum pump

What Is the Purpose of a Vacuum Pump in an HVAC System?

In an HVAC (Heating, Ventilation, and Air Conditioning) system, a vacuum pump serves a crucial purpose. Here’s a detailed explanation:

The purpose of a vacuum pump in an HVAC system is to remove air and moisture from the refrigerant lines and the system itself. HVAC systems, particularly those that rely on refrigeration, operate under specific pressure and temperature conditions to facilitate the transfer of heat. To ensure optimal performance and efficiency, it is essential to evacuate any non-condensable gases, air, and moisture from the system.

Here are the key reasons why a vacuum pump is used in an HVAC system:

1. Removing Moisture: Moisture can be present within an HVAC system due to various factors, such as system installation, leaks, or improper maintenance. When moisture combines with the refrigerant, it can cause issues like ice formation, reduced system efficiency, and potential damage to system components. A vacuum pump helps remove moisture by creating a low-pressure environment, which causes the moisture to boil and turn into vapor, effectively evacuating it from the system.

2. Eliminating Air and Non-Condensable Gases: Air and non-condensable gases, such as nitrogen or oxygen, can enter an HVAC system during installation, repair, or through leaks. These gases can hinder the refrigeration process, affect heat transfer, and decrease system performance. By using a vacuum pump, technicians can evacuate the air and non-condensable gases, ensuring that the system operates with the designed refrigerant and pressure levels.

3. Preparing for Refrigerant Charging: Prior to charging the HVAC system with refrigerant, it is crucial to create a vacuum to remove any contaminants and ensure the system is clean and ready for optimal refrigerant circulation. By evacuating the system with a vacuum pump, technicians ensure that the refrigerant enters a clean and controlled environment, reducing the risk of system malfunctions and improving overall efficiency.

4. Leak Detection: Vacuum pumps are also used in HVAC systems for leak detection purposes. After evacuating the system, technicians can monitor the pressure to check if it holds steady. A significant drop in pressure indicates the presence of leaks, enabling technicians to identify and repair them before charging the system with refrigerant.

In summary, a vacuum pump plays a vital role in an HVAC system by removing moisture, eliminating air and non-condensable gases, preparing the system for refrigerant charging, and aiding in leak detection. These functions help ensure optimal system performance, energy efficiency, and longevity, while also reducing the risk of system malfunctions and damage.

China Standard High-Pressure Vacuum Rated Glue Molasses Polymer Adhesive Hydraulic Oil Polyurethane Foam Metering Gear Pumps   with Hot selling	China Standard High-Pressure Vacuum Rated Glue Molasses Polymer Adhesive Hydraulic Oil Polyurethane Foam Metering Gear Pumps   with Hot selling
editor by CX 2023-11-09

China factory CZPT CNC Router Vacuum Pump Lubrication Pump Gear Pump with Level Switch vacuum pump for ac

Product Description


1. The system can set 2 action modes: (1)Lubrication: Lubrication timing should be executed before starting. (2) Memory: When the power is cut off and the power is sent again, the incomplete interval before execution can be continued.
2. Lubrication time and intermittent time can be adjusted (with lock key function, lock settings).
3. It has liquid level switch and pressure switch (normally closed, optional). When the oil or pressure is insufficient, the buzzer will give an alarm and output the abnormal signal. (1) Insufficient pressure showed Erp. (2) Insufficient liquid level shows Ero.
4. System time can be set, LUB lubrication time: 1-999 (seconds) INT interval time: 1-999 (minutes) (customizable).
5. panel indicator can show the lubrication and intermittent state of the oil injector.
6. System can use CZPT key to force lubrication or eliminate abnormal alarm signal.
7. The longest lubrication time is less than or equal to 2 minutes, and the interval time is more than 5 times of the lubrication time.
8. The motor is equipped with an overheat protector to prevent the motor from overheating and overloading.
9. Volumetric system is equipped with decompression device, which needs LT/DPB/MO distributor.
10. A relief valve is provided to prevent the lubrication pump from being damaged by overloading and excessive pipeline pressure.
11. Use oil viscosity 32-68 cSt@40ºC. 





HangZhou CZPT Machinery Co., Ltd. is a factory that manufactures centralized lubrication products and provides solutions.
The CZPT of the company: In 2005, when CZPT was dealing with slideway soft strips, it was found that the slideway soft strips were improperly lubricated or failed, and the friction force would increase drastically, making the machine tool unable to work normally, thus damaging the guide rails. At this point, we started the exploration and research of friction and lubrication.
Products and services: Manufacturing pump units for micro-lubrication systems, grease lubrication systems, and thin oil lubrication systems. Production of lubrication distributors, lubrication metering valves, lubrication system nylon tubing, high-pressure hoses, oil filters, pipe joints, etc. Provide overall centralized lubrication solutions and installation services.
R& D and innovation: We keep referring to the international advanced lubrication system design and production concepts, and improve the technical level and quality of our company’s products. It has been committed to the localization of high-end lubrication system technology and actively promoted brand research and development innovation. Over the years, we have integrated product experience and application conditions, optimized design, developed a variety of lubrication products, and obtained a number of patents and high-tech products.
Quality system: Passed ISO9001: 2015 international quality certification, and strictly regulated production operations in accordance with this standard.

Overseas market

In overseas markets, our products are mainly sold in Singapore, Thailand, Malaysia, Australia, Chile, Brazil, Mexico, the United States, Spain, France, the Middle East, Russia, South Africa and many other countries and regions. Over the years, our company has won the trust and favor of our customers by virtue of high-quality product flow service and super cost-effective, so that our lubrication system products are spread all over the world!

After Sales Guarantee

1. Professional online consultant tosolve your question about com-pressor system.
2. Negotiable technican availableto service machinery overseas.
3. Free site design consultant, andenergy saving solution to helpyou save operation cost.
4. Online professional after-serviceuntil solve the problem.
5. Our products have 1 year warranty period , so if it has quality problems within 1 year , you can find our warranty.
6. A sufficient number of spare parts are available, make sure the good after service.

Packaging & Shipping

In order to ensure that buyers pay, we support online transactions and online transactions, and provide a variety of payment options. In order to ensure timely delivery, we have sufficient inventory of almost all our products. Finally, we will deliver the products through the fastest international express to ensure fast receipt.

Payment Options


1. Are you a manufacturer?
Yes, we have been in lubrication pumps manufacturing and marketing industry over 10 years.

2. What products you supply?
Our products include grease electric lubrication pumps, oil electric lubrication pumps, oil-air lubrication pumps, single point lubrication pumps, oil-mist lubrication pumps, oil circulation lubrication pumps, manual lubrication pumps, lubrication distributors and lubrication accessories, etc

3. What markets do your pumps export to?
Europe, North & South America, South-East Asia, Africa, Oceanica, Middle East countries. Our overseas agent in Italy, Russia, America and Africa are gradually improving.

4. What information should I let you know if I want to get a quotation?
Please let us know the pump capacity, system, application scenario, operation situation, quantity, etc. As much as your provide, the precision and accurate model selection.

5. Is it available to print our own brand on the pump?
Totally acceptable as international rules.

6.Can you make according to customer require?
Yes, we can make according to your sample or drawing, OEM/ODM service provided.

7.What is your packing?
Netural packing or DAS logo carton packing,or customized box design packing.

8. What is your delivery time?
If we have stock, we can ship within 1 week. If not, takes about 10-45days depends on order quantity.

9. How can I get the price of your pumps?
You can connect with us through any of the following contact information. Our personalized service person will respond you within 24 hours.

10. What payments can you accept?
T/T, L/C, and Western union,cash.

11. Can you arrange shipment to our warehouse?
Yes, we have long term professional cooperated shipment agent to handle goods to your sea port and can delivery to door as require.

After-sales Service: 2 Year
Warranty: 1 Year
Mesh Form: Internal Engaged
Tooth Flank: Straight Tooth
Tooth Curve: Cycloid
Power: Electric
US$ 85/Piece
1 Piece(Min.Order)




Vacuum Pump

What Are Vacuum Pumps?

Vacuum pumps use air flow as the source of energy. The system is ideal for dewatering wet media, creating filter cakes, and pneumatically moving materials through a pipe. A vacuum pump works through air flow that is moved by differential pressure. The pump’s air flow develops a vacuum in a chamber that is called the vacuum box. As the air flow collects gas at a faster rate than atmospheric pressure, it is considered the “heart” of a vacuum system.

Principles of operation

Vacuum pumps work by reducing the volume of air that moves through them. Depending on the design, there are several different types of vacuum pumps. All of these types operate under the same principles, but have their own special features. Here are some of their most important characteristics. In addition to their capacity, the main differences between these pumps are their manufacturing tolerances, materials of construction, and level of tolerance for chemicals, oil vapor, and vibration.
Vacuum pumps create a partial or low-pressure vacuum by forcing gas molecules from their high-pressure states to their low-pressure states. However, these pumps can only achieve a partial vacuum, and other methods are necessary to reach a higher level of vacuum. As with all pumps, there are several ways to increase the level of a vacuum.
First, consider the type of vacuum you want. This is the most important factor when choosing a vacuum pump. If you need a high level of vacuum, you’ll need a high-quality vacuum pump. High-quality vacuum pumps have a high pressure limit, while ultrahigh-quality pumps are capable of achieving a very low vacuum. As the pressure decreases, the amount of molecules per cubic centimeter decreases and the quality of the vacuum increases.
Positive displacement pumps are best suited for low and medium-pressure systems. But they can’t reach high vacuum, which is why most high-pressure systems use two pumps in tandem. In this case, the positive displacement pump would stall and the other one would be used instead. Similarly, entrapment pumps have higher-pressure limits, so they must be refreshed frequently or exhaust frequently when there is too much gas to capture.
Another important aspect of vacuum pump operation is its speed. The speed of pumping is proportional to the differential pressure across the system. Therefore, the faster the pumping speed, the lower the draining time.


A vacuum pump is a mechanical device used to generate a vacuum. It can create a low or high vacuum. These pumps are used in the process of oil regeneration and re-refining. The design of a vacuum pump must be compatible with the vacuum. The pump’s mass and speed should be matched.
The design of a vacuum pump is important for many reasons. It should be easy to use and maintain. Vacuum pumps need to be protected from external contamination. For this reason, the oil must be kept clean at all times. Contamination may damage the oil, resulting in pump failure. The pump’s design should include features that will prevent this from happening.
The main objective of a vacuum pump is to remove air and other gases from a chamber. As the pressure of the chamber drops, the amount of molecules that can be removed becomes more difficult. Because of this, industrial and research vacuum systems typically require pumps to operate over a large pressure range. The range is generally between one and 10-6 Torr. A standard vacuum system uses multiple pumps, each covering a portion of the pressure range. These pumps can also be operated in a series to achieve optimal performance.
The design of a vacuum pump can vary depending on the application and the pressure requirement. It should be sized appropriately to ensure that it works properly. There are several different types of pumps, so selecting the right pump is essential to maximizing its efficiency. For example, a slow running vee belt drive rotary vane vacuum pump will have a lower running temperature than a fast-running direct-drive pump.
Vacuum Pump


The performance of a vacuum pump is an important indicator of its overall condition. It helps determine whether the system is performing optimally and how high the ultimate vacuum level can be achieved. A performance log should be maintained to document variations in pump operating hours and voltage as well as the temperature of the pump’s cooling water and oil. The log should also record any problems with the pump.
There are several ways to increase the performance of a vacuum pump. For example, one way is to decrease the temperature of the working fluid. If the temperature of the fluid is too high, it will lead to a low vacuum. A high temperature will make the vacuum degree of the pump even lower, so heat transfer is an important part of the process.
Nozzles are another major component that impacts the performance of a vacuum pump. Damage or clogging can result in a compromised pumping capacity. These problems can occur due to a number of causes, including excessive noise, leakage, and misassembled parts. Nozzles can also become clogged due to rusting, corrosion, or excess water.
Performance of vacuum pump technology is vital for many industries. It is an integral part of many central production processes. However, it comes with certain expenses, including machines, installations, energy, and maintenance. This makes it essential to understand what to look for when purchasing a vacuum pump. It is important to understand the factors that can influence these factors, as they affect the efficiency of a vacuum pump.
Another important factor in determining the performance of a vacuum pump is throughput. Throughput is a measurement of how many molecules can be pumped per unit of time at a constant temperature. Moreover, throughput can also be used to evaluate volume leak rates and pressure at the vacuum side. In this way, the efficiency of a vacuum pump can be judged by the speed and throughput of its leaks.

Atmospheric pressure

Vacuum pumps work by sucking liquids or air into a container. The amount of vacuum a pump can create is measured in pressure units called atms (atmospheric pressure). The pressure of a vacuum pump is equal to the difference between atmospheric pressure and the pressure in the system.
The amount of force produced by air molecules on each other is proportional to the number of impacts. Therefore, the greater the impact, the higher the pressure. In addition, all molecules have the same amount of energy at any temperature. This holds true for both pure and mixture gases. However, lighter molecules will move faster than heavier ones. Nevertheless, the transfer of energy is the same for both.
The difference between atmospheric and gauge pressure is not always straightforward. Some applications use one term to describe the other. While the two concepts are closely related, there are key differences. In most cases, atmospheric pressure is a higher number than gauge pressure. As a result, it can be confusing when choosing a vacuum pump.
One method is to use a U-tube manometer, a compact device that measures the difference between atmospheric pressure and vacuum. This device is commonly used for monitoring vacuum systems. It can measure both negative and positive pressure. In addition, it uses an electronic version of a gauge.
The atmospheric pressure affects the performance of a vacuum pump. When working with porous materials, the pump must overcome leakage. As a result, it must be equipped with enough capacity to compensate for variations in the porosity of the work piece. This is why it is critical to buy a vacuum pump that has a large enough capacity to handle the variation.
Vacuum Pump

Typical application

Vacuum pumps are used in a variety of applications. They generate low and high pressures and are used to evaporate water or gases from various materials. They are also used in petroleum regeneration and re-refining processes. Typical applications of vacuum pumps include: a.
b. Rotary vane pumps are used in a variety of vacuum applications. They are suitable for industrial applications, freeze drying and cabinet making. They use oil as a sealant and coolant, allowing them to perform well in a variety of applications. This makes them ideal for use in a variety of industries.
The pumping rate of the vacuum pump is important. This refers to the volume pumped from a given point at a given rate. The higher the speed, the faster the pump will expel the air. Depending on the gas composition, this number will vary. When choosing a vacuum pump, gas composition and process requirements should be considered.
Vacuum pumps are used in a variety of industries from laboratories to medical facilities. In medical applications, they are used in radiation therapy and radiopharmaceuticals. They are also used in mass spectrometers, which are instruments used to analyze solid, liquid, or surface materials. Vacuum pumps are also used in decorative vacuum coatings and Formula 1 engine components. A trash compactor is another example of using a vacuum pump.
Vacuum pumps are used in a variety of applications including water purification and aeration. Vacuum pumps are also used in portable dental equipment and compressors in the dental industry. Vacuum pumps are also used in molds for dental implants. Other common applications for vacuum pumps include soil aeration and air sampling.

China factory CZPT CNC Router Vacuum Pump Lubrication Pump Gear Pump with Level Switch   vacuum pump for ac	China factory CZPT CNC Router Vacuum Pump Lubrication Pump Gear Pump with Level Switch   vacuum pump for ac
editor by CX 2023-06-07

China parker hydraulic gear pump p50 vacuum pump ac

Model Variety: p50
Software: Mining industry, Other
Composition: Gear Pump
Principle: Vacuum Pump
Usage: Oil
Energy: Hydraulic
Regular or Nonstandard: Standard
Gas: Diesel
Stress: High Force
Color: Authentic
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Vacuum Pump

Disadvantages of using a vacuum pump

A vacuum pump is a device that pulls gas molecules out of a volume and leaves a partial vacuum. Its main function is to create a relative vacuum within a given volume. There are several types of vacuum pumps. Some of them are better suited for specific purposes than others. However, there are some disadvantages to using a vacuum pump.

Application of vacuum pump

Vacuum pumps are invaluable tools in many industrial and scientific processes. They are often used to move gas and other harmful substances and to clear clogged drains. They are also used to support mechanical equipment. For example, they can be mounted on the engine of a motor vehicle or the power hydraulic component of an aircraft. No matter how they are used, they should fit the application.
The principle of a vacuum pump is to draw gas from a sealed chamber to create a partial vacuum. Over the years, vacuum pump technology has evolved from its original beginnings to its current form. Today, there are many types of vacuum pumps, including rotary vane pumps, momentum transfer pumps, and regeneration pumps.
The semiconductor industry is a major user of vacuum pumps. Among other applications, these pumps are commonly used for mounting circuit boards, securing components, blowing and jetting, and pumping. The use of renewable resources has paved the way for widespread semiconductor production, where vacuum pumps are crucial. This manufacturing shift is expected to boost vacuum pump sales across Europe.
Vacuum Pump
The most common types of vacuum pumps are positive displacement and rotary vane pumps. Positive displacement pumps are most effective for rough vacuum applications and are usually paired with momentum transfer pumps. These pumps are used in pharmaceutical, food and medical processes. They are also used in diesel engines, hydraulic brakes and sewage systems.
Positive displacement pumps are used to create low vacuum conditions and create a partial vacuum. These pumps create lower air pressure by enlarging the chamber and allowing gas to flow into the chamber. The air in the cavity is then vented to the atmosphere. Alternatively, momentum transfer pumps, also known as molecular pumps, use high-speed rotating blades to create dense fluids.
Vacuum Pump

Their drawbacks

Vacuum pumps are useful in industrial applications. However, they are not perfect and have some drawbacks. One of them is that their output is limited by the vacuum hose. Vacuum hoses are the bottleneck for vacuum pump performance and evacuation rates. The hose must be kept free of water and organic matter to ensure the highest possible vacuum.
Dry vacuum pumps do not have these problems. They may be more cost-effective but will increase maintenance costs. Water consumption is another disadvantage. When pond water is used, the pump puts additional pressure on the treatment facility. Additionally, contaminants from the gas can become trapped in the water, shortening the life of the pump.
Another disadvantage of vacuum pumps is their limited operating time at low vacuum. Therefore, they are only suitable for extremely high vacuum levels. Diaphragm pumps are another option for industrial applications. They have a sealed fluid chamber that allows a moderate vacuum. They also feature short strokes and a low compression ratio, making them quieter than their reciprocating counterparts.
Vacuum pumps are used in many industrial and scientific processes. They can be used to transport hazardous materials or clear clogged drains. They are also used in rear doors and dump tanks. Certain types of vacuum pumps can cause fluid blockages, which can be harmful. The vacuum pump should also be well suited to the fluid in it to avoid contamination.
Another disadvantage is the lack of proper vacuum system testing equipment. Mechanics often underestimate the importance of a properly functioning vacuum system. Most stores lack the equipment needed for proper troubleshooting. Typically, mechanics rely on the cockpit vacuum gauge to determine if the pump is working properly.
Some vacuum pumps are capable of providing constant vacuum. These pumps are also capable of eliminating odors and spills. However, these advantages are outweighed by some disadvantages of vacuum pumps.

China parker hydraulic gear pump p50     vacuum pump acChina parker hydraulic gear pump p50     vacuum pump ac
editor by czh 2023-02-15

China high quality Helical Bevel Gearbox Transmission Gear near me supplier


1. High modular design
2. High load support, stable transmission, and low noise.
3. Good sealing, wide range of industry applications.
4. High efficiency and power saving.
5. Cost saving and low maintenance.

Main application:

1. Ports and Shipping
2. Lifting and transporting
3. Electricity
4. Coal mining
5. Cement and Construction
6. Paper and Light Industry
7. Chemical and environmental protection, etc.

Technical Data:

Housing material
Cast iron/Ductile iron
Housing hardness HBS190-240
Gear material 20CrMnTi alloy steel
Surface hardness of gears HRC58°~62 °
Gear core hardness HRC33~40
Input / Output shaft material 42CrMo alloy steel
Input / Output shaft hardness HRC25~30
Machining precision of gears Accurate grinding, 6~5 Grade
Lubricating oil GB L-CKC220-460, Shell Omala220-460
Heat treatment Tempering, cementing, quenching, etc.
Efficiency 94%~96% (depends on the transmission stage)
Noise (MAX) 60~68dB
Temp. Rise (MAX) 40°C
Temp. Rise (Oil)(MAX) 50°C
Vibration ≤20µm
Backlash ≤20Arcmin


Size Solid Shaft Dia. 


Hollow Shaft Dia. 


Center Height 


Output Flange Dia. 




Ratio Permissible Torque 




37 φ25k6 φ30h7 100 φ110/160 0.18-3.0 5.36-106.38 200 11
47 φ30k6 φ35h7 112 φ120/200 0.18-3.0
400 20
57 φ35k6 φ40h7 132 φ155/250 0.18-5.5 6.57-145.14 600 27
67 φ40k6 φ40h7 140 φ155/250 0.18-5.5
820 33
77 φ50k6 φ50h7 180 φ170/300 0.37-11.0 7.24-292.18 1550 57
87 φ60m6 φ60h7 212 φ215/350 0.75-22.0 7.19-197.18 2700 85
97 φ70m6 φ70h7 265 φ260/450 1.1-30.0
4300 130
107 φ90m6 φ90h7 315 φ304/450 3.0-45.0 8.74-141.46 8000 250
127 φ110m6 φ100h7 375 φ350/550 7.5-90.0 8.68-146.07 13000 380
157 φ120m6 φ120m6 450 φ400/660 11.0-160.0 12.65-150.41 18000 610
167 φ160m6 φ160m6 500 φ800 11.0-200.0 17.28-163.91 32000 1015
187 φ190m6 φ190m6 600 φ800 18.5-200.0 17.27-180.78 50000 1700



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Why choose us

1. Wide selection of reducers

Our company offers the widest range of standard and custom solutions for applications in motion control and mechanical transmission. We provide precision inline planetary gearboxes and right angle planetary gearboxes, 90 degree right angle servo motor gearboxes, harmonic drive gearboxes, RV reducers for robots, ground precision racks, and pinions, servo motors, stepper motors, brushless motor,s, etc. The company can also provide worm gear reducers, gear motors, screw jacks, steering gears, and other related reducer gearboxes and accessories. This means you can get what you want right here and benefit from our one-stop service, saving you time and money.

2. Attractive price and top brand quality

We offer our customers very attractive prices with good quality. Compared with other companies’ gearboxes, our precision planetary gearboxes feature low backlash (2-8 arcmin), high efficiency (≥95%), and low noise (60dBA). All servo gearboxes produced by our famous brand will be strictly inspected and tested before leaving the factory. In addition, we provide customers with a one-year warranty and lifetime after-sales service.

3. All-round professional technical support

Don’t worry if you don’t know how to choose the right transmission for your machine. We have a professional technical team to serve you. As long as you follow our steps, you’ll know how to choose the right size. After selecting the matching gearbox for your motor, we will send you the corresponding CAD drawing for your inspection to avoid any mistakes. We also offer 24-hour technical support if you have any other issues that need urgent resolution.

4. Provide customized service

If you need a custom gearbox for a unique application, we can provide custom service according to your requirements. We will provide you with reliable, high-performance custom gearboxes from small to large output torques. Please tell our sales engineer your detailed requirements and all the necessary dimensions you want. The more information you provide us, the more suitable we can design a custom transmission for you.

5. Fast delivery time

For most of the standard reducers, we have sufficient stock, which can be delivered to customers in a very short time, solve the problem of urgent replacement of damaged gearboxes on working machines, and save costs for customers. Also, if a customer needs a gearbox of a certain size urgently and we do not have it in stock, we can arrange priority production, especially for you.

6. Professional

As 1 of the leading bevel gearbox manufacturers, mechanical product suppliers, and factories, we supply angular contact worm gearbox, planetary gearbox, and many other products.

edited by CX